CN218306000U - Double-function training device for abdominal and dorsal muscles - Google Patents

Abstract

The application discloses difunctional trainer of abdominal muscle and dorsal muscle, including body frame and cushion frame, the body frame includes the holding chamber, detachably fixedly connected with spontaneous resistance power of holding intracavity provides the mechanism, spontaneous resistance power provides the mechanism and includes the mount, the mount rotates respectively and is connected with driving shaft, first driven shaft and second driven shaft, the reciprocal rotation of driving shaft drives first driven shaft unidirectional rotating, the fixed cover of first driven shaft has first driven sprocket, second driven sprocket and self-generating motor have been cup jointed to the second driven shaft, first driven sprocket's diameter is greater than the diameter of second driven sprocket overlaps through first driven sprocket and the orthographic projection part of self-generating motor one side that is connected with the second driven shaft at the mount for distance between first driven shaft and the second driven shaft diminishes, and spontaneous resistance power provides the structure of mechanism compacter, has reduced the difunctional trainer of abdominal muscle and dorsal muscle.

Description

Double-function training device for abdominal and dorsal muscles

Technical Field

The utility model relates to a body-building apparatus field, concretely relates to outdoor body-building apparatus field especially relates to a difunctional trainer of back of the abdomen muscle.

Background

Along with the development of economy in China, the living standard of people is continuously improved, and people are concerned about self exercise health except for clothes and eating. In order to advocate the concept of sports health, nowadays more and more parks, squares, sports centers, playgrounds and other places are equipped with abdominal and dorsal muscle dual-function training devices. The abdominal and dorsal muscle dual-function training device can adopt a self-generating motor as a resistance source, and the self-generating motor can provide resistance and convert kinetic energy into electric energy to supply power for an electronic instrument of the abdominal and dorsal muscle dual-function training device.

The structure of the existing abdominal and dorsal muscle dual-function training device is dispersed and not compact enough, so that the abdominal and dorsal muscle dual-function training device has larger volume.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies or inadequacies in the prior art, it would be desirable to provide a abdominal and dorsal muscle dual function exercise device that is compact.

On the first hand, the abdominal and dorsal muscle dual-function training device comprises a main frame and a cushion frame, wherein the main frame comprises a holding cavity, a spontaneous electric resistance providing mechanism is detachably and fixedly connected in the holding cavity, the spontaneous electric resistance providing mechanism comprises a fixing frame, the fixing frame is respectively and rotatably connected with a driving shaft, a first driven shaft and a second driven shaft, the driving shaft is driven by the reciprocating rotation of the driving shaft to rotate in a single direction, a first driven sprocket is fixedly sleeved on the first driven shaft, a second driven sprocket and a self-generating motor are fixedly sleeved on the second driven shaft, the diameter of the first driven sprocket is larger than that of the second driven sprocket,

the first driven chain wheel and the second driven chain wheel are driven by a first chain to enable the first driven shaft and the second driven shaft to synchronously rotate,

the first driven chain wheel is overlapped with the orthographic projection part of the self-generating motor on one side of the fixed frame connected with the second driven shaft,

cushion frame detachably fixedly connected with cushion and display screen respectively, the cushion frame rotates and is connected with first bubble cotton, first bubble is cotton to be located the cushion is kept away from one side of display screen, the driving shaft is close to the first swing arm of one side fixedly connected with of cushion, first swing arm rotates and is connected with the second bubble cotton, first swing arm fixedly connected with second swing arm, the first fixed pipe of second swing arm fixedly connected with, fixedly connected with the first in command and the second in command on the first fixed pipe, first fixed pipe orientation the cotton one side detachably fixedly connected with arm pad of second bubble.

According to the technical scheme that this application embodiment provided, overlap with the orthographic projection part that is connected with one side of second driven shaft at the mount from the generator through first driven sprocket for distance between first driven shaft and the second driven shaft diminishes, makes the structure that spontaneous resistance provided the mechanism compacter, thereby has reduced the difunctional trainer of abdominal muscle.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a front view of a dual function abdominal and dorsal muscle trainer in accordance with an embodiment of the present invention;

fig. 2 is a left side view of the abdominal and dorsal muscle dual function training device according to the embodiment of the present invention;

fig. 3 is a perspective view of the abdominal and dorsal muscle dual function training device according to the embodiment of the present invention;

fig. 4 is a schematic structural view of the abdominal and dorsal muscle dual function training device of the embodiment of the present invention without a cover;

fig. 5 is a front view of a spontaneous electric resistance providing mechanism of the abdominal and dorsal muscle dual function training device according to an embodiment of the present invention;

fig. 6 is a top view of a self-generating resistance providing mechanism of the abdominal and dorsal muscle dual-function training device according to the embodiment of the present invention;

fig. 7 is a perspective view of the self-generating resistance providing mechanism of the abdominal and dorsal muscle dual-function training device according to the embodiment of the present invention;

fig. 8 is a schematic view of a third chain transmission structure of the dual function training device for abdominalis and dorsi muscles according to the embodiment of the present invention;

fig. 9 is a schematic view of the first chain and the second chain transmission structure of the dual function training device for abdominal and dorsal muscles according to the embodiment of the present invention.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Please refer to fig. 1-9, the utility model discloses a difunctional trainer of abdominal muscle and dorsal muscle, including body frame 300 and cushion frame 400, body frame 300 includes holding chamber 310, detachably fixedly connected with spontaneous electric resistance provides mechanism 1000 in the holding chamber 310, spontaneous electric resistance provides mechanism 1000 mount 100, mount 100 rotates respectively and is connected with driving shaft 210, first driven shaft 211 and second driven shaft 212, driving shaft 210 reciprocates to rotate and drives first driven shaft 211 unidirectional rotation, first driven shaft 211 is fixed to be cup jointed first driven sprocket 240, second driven shaft 212 is fixed to be cup jointed second driven sprocket 241 and spontaneous electric motor 213, the diameter of first driven sprocket 240 is greater than the diameter of second driven sprocket 241, first driven sprocket 240 and second driven sprocket 241 pass through first chain 242 transmission, so that first driven shaft 211 and second driven shaft 212 rotate in step, first driven sprocket 240 and spontaneous electric motor 213 are connected with the orthographic projection part overlap of second driven sprocket 212 one side at mount 100, first driven sprocket 410 and display screen 420 of detachably fixedly connected with through first chain 242 transmission, cushion frame 400 rotates and is connected with first bubble 430, first fixed swing arm 521 is connected with fixed swing arm 521 and fixed swing arm 510 is connected with second fixed arm 521 and fixed swing arm 521 fixed arm 521 and is connected with second fixed arm 521 on one side of the fixed swing arm 510, the fixed arm 521, the fixed arm 510 is connected with first driven shaft 510 and fixed arm 521, the fixed arm 521 is connected with second fixed arm 521.

The utility model discloses an in the embodiment, body frame and cushion frame are fixed subaerial respectively, guarantee the difunctional trainer of abdominal muscle and dorsal muscle's reliability and stability. The body frame includes the holding chamber, and spontaneous resistance provides the mechanism in the holding intracavity, can play the effect that the protection resistance provided the mechanism. Cushion frame detachably fixedly connected with cushion, when the user uses the difunctional trainer of back of the abdomen muscle to train, the cushion can support user's buttock. The cushion frame rotates and is connected with first bubble cotton, and when the user used difunctional trainer of back of the abdomen muscle to train, first bubble cotton can support user's waist. Second swing arm and first swing arm fixed connection, the first fixed pipe of second swing arm fixedly connected with, fixedly connected with first in command and second in command on the first fixed pipe, first swing arm rotates and is connected with the second bubble cotton, when the user uses the difunctional trainer of back muscle to train, the first in command is grabbed to one hand, the second in command is grabbed to the other hand, simultaneously, the forearm supports the arm pad, the arm pad can support user's forearm, exert oneself through waist muscle and back muscle, do and roll up the abdomen and the training of pitching backward, at this moment, first swing arm and the motion of second swing arm can be followed to the user upper body. The driving shaft is fixedly connected with a first swing arm, the first swing arm rotates to drive the driving shaft to rotate, and the self-generating resistance force providing mechanism provides resistance for the rotation of the first swing arm. The main frame fixedly connected with display screen, the display screen can show user's training number of times, consume calorie condition etc..

The mount is used for supporting whole spontaneous electrical resistance and provides the mechanism, and driving shaft, first driven shaft and second driven shaft rotate with the mount respectively and are connected, can but not be limited to realize rotating through the bearing and connect, have reduced the frictional force that receives in the rotation process of driving shaft, first driven shaft and second driven shaft. When the user uses the abdominal and dorsal muscle dual-function training device, the first swing arm is driven to swing through the abdomen rolling and backward bending actions, namely the driving shaft is driven to rotate in a reciprocating manner.

The first driven shaft and the second driven shaft move following the movement of the driving shaft. Specifically, the reciprocating rotation of the driving shaft drives the first driven shaft to rotate in a single direction, namely, no matter the driving shaft rotates clockwise or anticlockwise, the driving shaft can only drive the first driven shaft to rotate in a single direction clockwise or anticlockwise, the first driven shaft and the second driven shaft rotate synchronously, and the first driven shaft rotates in a single direction to drive the second driven shaft to rotate in a single direction. And resistance exists when the self-generating motor on the second driven shaft rotates, and resistance is provided for the reciprocating swing of the driving shaft. In the process that the driving shaft drives the self-generating motor to rotate in a single direction, the self-generating motor can generate electric energy, the self-generating motor can be electrically connected with the storage battery, and the storage battery is charged by the electric energy generated by the self-generating motor, so that the electric energy is stored. In-process that carries out the muscle training at the user, when the reciprocal swing of drive driving shaft, drive first driven shaft and second driven shaft unidirectional rotation, also drive the unidirectional rotation of self-generating motor promptly, the self-generating motor can not carry out the motion switching-over at the training in-process, because inertia causes the driving shaft to appear rotating and just to be frustrated when can avoiding self-generating motor switching-over, has promoted user's training and has experienced.

The first driven shaft is fixedly sleeved with a first driven chain wheel, the first driven chain wheel and the first driven shaft are arranged concentrically, and the first driven chain wheel rotates along with the first driven shaft. The second driven shaft is fixedly sleeved with a second driven chain wheel, the second driven chain wheel and the second driven shaft are arranged concentrically, and the second driven chain wheel rotates along with the second driven shaft. First driven sprocket and second driven sprocket pass through first chain drive, and first driven sprocket and second driven sprocket all contact with the inboard of first chain, and that is first driven sprocket and the synchronous syntropy rotation of second driven sprocket promptly, and that is first driven shaft and the synchronous syntropy rotation of second driven shaft promptly.

The diameter of first driven sprocket is greater than the diameter of second driven sprocket, and first driven shaft rotates a less angle, just can realize driving the second driven shaft and rotate a great angle. That is, the driving shaft can drive the self-generating motor to rotate by a larger angle without swinging to a large extent.

First driven sprocket overlaps with the orthographic projection part that is connected with one side of second driven shaft at the mount from generator motor for distance between first driven shaft and the second driven shaft diminishes, makes the structure that spontaneous resistance provided the mechanism compacter, thereby has reduced the difunctional trainer of abdominal muscle back.

Further, the main frame 300 comprises a first upright post 311, a second upright post 312, a first cross post 313 and a second cross post 314, the first upright post 311, the second upright post 312, the first cross post 313 and the second cross post 314 enclose to form an accommodating cavity 310, two sides of the main frame 300 are respectively and fixedly connected with cover shells 320 in a detachable manner, and the two cover shells 320 enclose the accommodating cavity 310.

The utility model discloses an in the embodiment, the body frame includes first stand, second stand, first spreader and second spreader for the body frame structure is more stable. The two sides of the main frame are respectively provided with the housing, and the housing can seal the accommodating cavity, so that on one hand, external dust or sundries are prevented from entering the accommodating cavity to influence the normal work of the self-generating resistance providing mechanism, and the service life of the self-generating resistance providing mechanism is prolonged; on the other hand, the contact between the user and the self-generating resistance providing mechanism is avoided, and the personal safety of the user is guaranteed.

Further, a sealing strip 321 is provided between the cover 320 and the main frame 300. The sealing strip can further improve the sealing performance of the contact part of the housing and the main frame.

Further, the driving shaft 210 penetrates through the housing 320, a sealing ring 322 is sleeved on the driving shaft 210, and the sealing ring 322 is located in the accommodating cavity 310 and abuts against the housing 320.

The embodiment of the utility model provides an in, the driving shaft passes the housing, and the driving shaft of being convenient for is connected with first swing arm. The driving shaft is sleeved with a sealing ring, the sealing ring is positioned in the accommodating cavity and abuts against the housing, and the sealing performance of the part of the driving shaft penetrating through the housing is ensured by the sealing ring.

Further, a first fixing sleeve 513 is fixedly connected to the first swing arm 510, the driving shaft 210 penetrates through the first fixing sleeve 513, and the driving shaft 210 is connected with the first fixing sleeve 513 through a key. First swing arm is realized through first fixed cover and driving shaft fixed connection, through the key-type connection between driving shaft and the first fixed cover, is convenient for assemble.

Further, the main frame 300 and the seat cushion frame 400 are connected by a link 450. The connecting rod can improve the stability of body frame and cushion frame.

Further, first swing arm 510 is fixedly connected with second fixed pipe 511, and second fixed pipe 511 rotates and is connected with second bubble cotton 512, and first bubble cotton 430 is parallel with second bubble cotton 512. Realize rotating the connection second through the fixed pipe of second and steep cotton, when the user used difunctional trainer of back muscle to train, the cotton back that can support the user of second bubble. The first foam and the second foam are parallel, so that the first foam and the second foam can better support a user.

Further, the first swing arm 510 and the second swing arm 520 are perpendicular. The first swing arm and the second swing arm are guaranteed to have a reasonable gap for the upper body of a user to pass through, and therefore the user can train conveniently.

Further, a plurality of bolts 525 are further included, and the plurality of bolts 525 pass through the arm pad 524 and the first fixing pipe 521, respectively, to fix the arm pad 524 and the first fixing pipe 521.

The utility model discloses an in the embodiment, pass arm pad and first fixed pipe respectively through many bolts to realize detachably fixed connection between arm pad and the first fixed pipe, simple structure is reliable.

Further, the seat cushion frame 400 is fixedly connected with a plurality of pedal tubes 440, and the pedal tubes 440 are located below the display screen 420.

The embodiment of the utility model provides an in, when the user uses the difunctional trainer of back muscle to train, can catch on pedal pipe with the foot, supplementary power of having an effect.

Further, the driving shaft 210 is fixedly sleeved with a first driving sprocket 220 and a second driving sprocket 230, the first driven shaft 211 is fixedly sleeved with a first one-way sprocket 221 and a second one-way sprocket 231, the slipping directions of the first one-way sprocket 221 and the second one-way sprocket 231 are the same, the first driving sprocket 220 and the first one-way sprocket 221 are driven by a second chain 222, the second driving sprocket 230 and the second one-way sprocket 231 are driven by a third chain 232, and the first one-way sprocket 221 and the second one-way sprocket 231 synchronously rotate in the opposite direction.

In the embodiment of the utility model, the first driven shaft is fixedly sleeved with the first one-way chain wheel and the second one-way chain wheel, the slipping directions of the first one-way chain wheel and the second one-way chain wheel are the same, and when the first one-way chain wheel and the second one-way chain wheel rotate along the slipping direction, the first one-way chain wheel and the second one-way chain wheel can not drive the first driven shaft to rotate; when first one-way sprocket and the one-way sprocket of second rotate along the opposite direction with the direction of skidding, first one-way sprocket and the one-way sprocket of second can drive first driven shaft and rotate. The first and second unidirectional sprockets can, but are not limited to, employ a ratchet structure.

The slipping direction of the first one-way chain wheel and the second one-way chain wheel is the same, and the rotating direction of the self-generating motor is opposite, the first one-way chain wheel and the second one-way chain wheel synchronously rotate in the opposite direction, at least one of the first one-way chain wheel and the second one-way chain wheel can be ensured to drive the first driven shaft to rotate, and then the self-generating motor is driven to rotate. The slip direction of the first one-way chain wheel and the second one-way chain wheel is anticlockwise, and the rotation direction of the self-generating motor is clockwise, so that when the driving shaft rotates clockwise, the first one-way chain wheel is driven to rotate clockwise and the second one-way chain wheel rotates anticlockwise, the first one-way chain wheel rotates clockwise to drive the first driven shaft to rotate clockwise, the second driven shaft and the self-generating motor are driven to rotate clockwise, at the moment, the second one-way chain wheel rotates anticlockwise and slips, and the second one-way chain wheel cannot drive the first driven shaft to rotate; when the driving shaft rotates anticlockwise, the first one-way chain wheel is driven to rotate anticlockwise and the second one-way chain wheel is driven to rotate clockwise, the second one-way chain wheel rotates clockwise to drive the first driven shaft to rotate clockwise, and then the second driven shaft and the self-generating motor rotate clockwise, the first one-way chain wheel rotates anticlockwise and slips at the moment, the first one-way chain wheel cannot drive the first driven shaft to rotate, the driving shaft is driven to rotate in a reciprocating mode to drive the first driven shaft to rotate in a one-way mode, and then the second driven shaft and the self-generating motor are driven to rotate in a one-way mode.

Further, the outer diameter of the first driving sprocket 220 is equal to the outer diameter of the second driving sprocket 230, and the outer diameter of the first one-way sprocket 221 is equal to the outer diameter of the second one-way sprocket 231.

In an embodiment of the present invention, the outer diameter of the first driving sprocket is equal to the outer diameter of the second driving sprocket, and the outer diameter of the first one-way sprocket is equal to the outer diameter of the second one-way sprocket. The transmission ratio between the first unidirectional chain wheel and the first driving chain wheel is the same as the transmission ratio between the second unidirectional chain wheel and the second driving chain wheel, so that when the driving shaft rotates in a reciprocating manner, constant force can be applied, and the stability of muscle training is ensured.

Further, the first driving sprocket 220 and the first driven sprocket 240 partially overlap in an orthographic projection of the fixing frame 100 on the side where the second driven shaft 212 is connected, and the second driving sprocket 230 and the first driven sprocket 240 partially overlap in an orthographic projection of the fixing frame on the side where the second driven shaft 212 is connected.

The utility model discloses an in the embodiment, first driving sprocket overlaps at the orthographic projection part that the mount is connected with one side of second driven shaft with first driven sprocket, and second driving sprocket overlaps at the orthographic projection part that the mount is connected with one side of second driven shaft with first driven sprocket for distance between first driven shaft and the driving shaft diminishes, makes the structure that spontaneous resistance provided the mechanism compacter, thereby has reduced the difunctional trainer of abdominal muscle.

Further, the second chain 222 is passing around the first one-way sprocket 221, and the third chain 232 is passing around the second one-way sprocket 231.

In the embodiment of the utility model, the second chain is just winding around first one-way sprocket, and here just winding means that first one-way sprocket and the inboard contact of second chain realize first one-way sprocket and the synchronous syntropy of first drive sprocket and rotate. The third chain reversely winds around the second one-way chain wheel, wherein the reverse winding means that the second one-way chain wheel is in contact with the outer side of the third chain wheel, and the second one-way chain wheel and the second driving chain wheel synchronously rotate in the reverse direction. And first driving sprocket and second driving sprocket all cup joint and fix on the driving shaft, and the driving shaft can drive first driving sprocket and the synchronous syntropy rotation of second driving sprocket, realizes the synchronous antiport rotation of first one-way sprocket and second one-way sprocket.

Further, the fixed frame 100 is rotatably connected with a first tension sprocket 234 and a second tension sprocket 235, the second driving sprocket 230, the first tension sprocket 234 and the second tension sprocket 235 respectively tightly support the inner side of the third chain 232, and the second one-way sprocket 231 tightly supports the outer side of the third chain 232.

In an embodiment of the present invention, the first tension sprocket and the second tension sprocket play a role of tensioning the third chain. Simultaneously, first tensioning sprocket and second tensioning sprocket can change the trend of third chain for the one-way sprocket of second can be walked around steadily in the outside of third chain, and avoid the third chain to produce the motion with other structures that the resistance provided the mechanism from electricity generation and interfere, have guaranteed driven stability.

Further, the first tension sprocket 234 is located above the self-generating motor 213, the second tension sprocket 235 is located below the second one-way sprocket 231, and an orthographic projection of the second tension sprocket 235 on the first driven sprocket 240 is located within the first driven sprocket 240.

The utility model discloses an in the embodiment, rationally distribute first tensioning sprocket and second tensioning sprocket's position for the structure that spontaneous resistance provided the mechanism is compacter.

Further, the first driving sprocket 220 is provided with a first limiting hole 223, the second driving sprocket 230 is provided with a second limiting hole 233, the first limiting hole 223 is opposite to the second limiting hole 233, the fixing frame 100 is detachably and fixedly connected with a limiting rod 150, and the limiting rod 150 penetrates through the first limiting hole 223 and the second limiting hole 233.

The utility model discloses an in the embodiment, the shape and the size homoenergetic of first spacing hole and the spacing hole of second are the same, and first spacing hole and the spacing hole of second are arc waist hole, and the gag lever post of being convenient for passes. The gag lever post passes first spacing hole and the spacing hole of second, and when the driving shaft reciprocating motion, the rotation range of gag lever post can be restricted at the both ends in first spacing hole and the spacing hole of second, just also restricts the rotation range of driving shaft, has guaranteed user's personal safety.

Further, the self-generating motor 213 is electrically connected to a battery.

The utility model discloses an in the embodiment, to connect from the generator motor with the battery electricity, utilize the electric energy that the generator motor produced from to charge for the battery, realize storing the electric energy. The storage battery can supply power for electric equipment such as instruments of the abdominal and back muscle dual-function training device. Of course, a solar panel can be arranged to generate electricity and charge the storage battery.

Further, the fixing frame 100 includes a first fixing plate 110 and a second fixing plate 120 which are oppositely and spaced, a plurality of positioning rods 140 are disposed between the first fixing plate 110 and the second fixing plate 120, one end of each positioning rod 140 is detachably and fixedly connected to the first fixing plate 110, the other end of each positioning rod 140 is detachably and fixedly connected to the second fixing plate 120, and the first driven sprocket 240, the second driven sprocket 241 and the self-generating motor 213 are located between the first fixing plate 110 and the second fixing plate 120.

The utility model discloses an in the embodiment, first driven sprocket, second driven sprocket and from the generator motor lie in between first fixed plate and the second fixed plate, and first fixed plate and second fixed plate can play the guard action. A plurality of locating levers are arranged between the first fixing plate and the second fixing plate and can play a role in supporting the first fixing plate and the second fixing plate, so that the first fixing plate and the second fixing plate are kept parallel to each other and are stably connected. One end and the first fixed plate detachably fixed connection of locating lever can but not be limited to the locating lever and be connected through the bolt with first fixed plate, and simple structure is reliable. The other end and the second fixed plate detachably fixed connection of locating lever can but not be limited to the locating lever and be connected through the bolt with the second fixed plate, and simple structure is reliable.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features disclosed herein, and that other combinations of features disclosed herein or their equivalents, in any combination, are also encompassed by the invention without departing from the spirit of the invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (10)

1. The abdominal and dorsal muscle dual-function training device is characterized by comprising a main frame and a cushion frame, wherein the main frame comprises an accommodating cavity, a spontaneous electric resistance providing mechanism is detachably and fixedly connected in the accommodating cavity, the spontaneous electric resistance providing mechanism comprises a fixing frame, the fixing frame is respectively and rotatably connected with a driving shaft, a first driven shaft and a second driven shaft, the driving shaft rotates in a reciprocating manner to drive the first driven shaft to rotate in a single direction, the first driven shaft is fixedly sleeved with a first driven sprocket, the second driven shaft is fixedly sleeved with a second driven sprocket and a spontaneous electric motor, the diameter of the first driven sprocket is larger than that of the second driven sprocket,

the first driven chain wheel and the second driven chain wheel are driven by a first chain to enable the first driven shaft and the second driven shaft to synchronously rotate,

the first driven chain wheel is overlapped with the orthographic projection part of the self-generating motor on one side of the fixed frame connected with the second driven shaft,

cushion frame detachably fixedly connected with cushion and display screen respectively, the cushion frame rotates and is connected with first bubble cotton, first bubble is cotton to be located the cushion is kept away from one side of display screen, the driving shaft is close to the first swing arm of one side fixedly connected with of cushion, first swing arm rotates and is connected with the second bubble cotton, first swing arm fixedly connected with second swing arm, the first fixed pipe of second swing arm fixedly connected with, fixedly connected with first in command and second in command on the first fixed pipe, first fixed pipe orientation the cotton one side detachably fixedly connected with arm pad of second bubble.

2. The abdominal and dorsal muscle dual-function training device according to claim 1, wherein the main frame comprises a first upright column, a second upright column, a first cross column and a second cross column, the first upright column, the second upright column, the first cross column and the second cross column enclose the accommodating cavity, two sides of the main frame are respectively and fixedly connected with a cover shell in a detachable manner, and the two cover shells close the accommodating cavity.

3. The abdominal and dorsal muscle dual function training device of claim 2, wherein a sealing strip is provided between the casing and the main frame.

4. The abdominal and dorsal muscle dual-function training device according to claim 2, wherein the driving shaft penetrates through the housing, and a sealing ring is sleeved on the driving shaft, is located in the accommodating cavity and abuts against the housing.

5. The abdominal and dorsal muscle dual function training device as claimed in claim 1, wherein the first swing arm is fixedly connected with a first fixing sleeve, the driving shaft passes through the first fixing sleeve, and the driving shaft is connected with the first fixing sleeve through a key.

6. The abdominal and dorsal muscle dual function training device of claim 1, wherein the main frame and the cushion frame are connected by a linkage.

7. The abdominal and dorsal muscle dual function training device according to claim 1, wherein the first swing arm is fixedly connected with a second fixing tube, the second fixing tube is rotatably connected with the second foam, and the first foam and the second foam are parallel.

8. The dual function exercise device of claim 1, wherein the first swing arm and the second swing arm are perpendicular.

9. The abdominal-dorsal muscle dual function training device according to claim 1, further comprising a plurality of bolts passing through the arm pad and the first fixing tube, respectively, to fix the arm pad and the first fixing tube.

10. The abdominal and dorsal muscle dual function training device of claim 1, wherein a plurality of foot tubes are fixedly connected to the cushion frame, the foot tubes being located below the display screen.

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